Any disease of the retina, the light-sensitive membrane at the back of the eye. The type of retinopathy is often specified, such as arteriosclerotic retinopathy, diabetic retinopathy, or hypertensive retinopathy.
- Retinopathy, arteriosclerotic
Splitting of the retina. From retina + -schisis (splitting).
Retrospective diagnosis. The proposal that the mysterious illness that killed Alexander the Great more than 2,300 years ago was West Nile fever is an exercise in retrodiagnosis.
- Retrograde amnesia
Amnesia in which the lack of memory relates to events that occurred before a traumatic event. Retrograde amnesia is in contrast to antegrade amnesia in which the lack of memory relates to events that occurred after a traumatic event.
A hormone that is produced during pregnancy that facilitates the birth process by causing a softening and lengthening of the cervix and the pubic symphysis (the place where the pubic bones come together). Relaxin also inhibits contractions of the uterus and may play a role in determining the timing of delivery.